Vapor-burner.



No MODEL.

ggg

E. W. PRITGHARD.

vVAPOR BURNER. APPLICATION FILED MAY 19, 1902.

'PATENTED AUG. l1, l903..

Patented August 11, 1903.

PATENT GFFICE.

EDVARD WALTER PRITCHARD, vOF DALLAS, TEXAS.

VAPOR-BU RN ER.

l SPECIFICATION forming part of Letters Patent No. 736,013, dated August11, 1903. Application tiled May19, 1902. Serial No. 108,008. (No modelTo @ZZ whom t may concern:`

Be it known that I, EDWARD WALTER PRITCHARD,a resident of Dallas, in thecou nty of Dallas and `State of Texas, have invented certain new anduseful Improvements in Vapor-Burners; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appert'ains roto make and use the same.

My invention relates to an improvement in vapor-burners, the object ofthe invention being to provide an improved burner in which steam will beutilized to heat the oil, mix

with the vapor, and be burned therewith.

With this object in View the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, asWill be more fully hereinafter described,

zo and pointed out in the claims.

In the accompanyingdrawings, Figure lis a'view in section illustratingmy improvements. Fig. 2 is a plan view, and Figs. 3 and 4 views ofdetails of construction.

l represents a burner-tube having screwed onto one end a curved burner2, closed by a cap 3 and slit near the cap, as shown at 4, through whichthe combustible mixture is fed and burned. On the opposite end of thistube 3o l an enlarged steam-chamber 5 is screwed or otherwise securedand is provided with a teat 6, into which a steam-supply pipe 7 isscrewed and adapted to supply steam to the chamber 5 and tube l. Anopeningis provided in the rear wall of chamber 5 to receive atightlytting coupling 8, comprising two diverging cones with an enlargedangular center 8a to receive a wrench and permit rotation thereof. Thiscoupling 3 is screwed into chamber 5 and 4o connects a T-coupling 9 witha long nozzle 10, projecting into tube 1, and with said T- coupling 9 anoil-supply pipe 9a is connected, as shown. On the inner end of nozzle 10an elongated tubular cap 11 is mounted and slit at its closed end forthe escape of vapor into tube 1. This cap Il is mounted toslide'longitudinally on nozzle l0 to lengthen or shorten the same andcompel the oil to pass through a longer or shorter heating zone beforees- 5o cape. This adjustment is accomplished by means of a longscrew-threaded rod 12, connected at its inner end to a cross-pin 13 incap 11 and projects at its other end through packing-nuts 14, 'closingone end ofrT-coupling 9, and a set-nut 15-is located on the protrudingend of rod 12 to move the latter longitudinally when nut l5 is turned,and thereby adjust the cap longitudinally to lengthen o r shorten thenozzle.

In operation oil is fed through nozzle 10, which latter is heated by thesupply of steam surrounding the same. The oil is vaporized and escapesthrough the slit in cap l1 and is mixed with the steam and the mixtureburned at the slit 4 in burner 3.

ments the steam not only serves as a part of the combustible mixture,but also as a heating medium to vaporize the oil, and I produce a burnerwhich is extremely simple in construction, cheap to manufacture, andhighly efficient as a heater. Y

A great many changes might be made inv the general form and arrangementof parts described without departingfrom .my invention, and hence I donot limit myselfto the precise construction set forth, but considermyself at liberty to make such slight changes and alterations as fairlyfall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. The combination with a main supplypipe provided with a burner at oneend and a steam-supply connection at its other end, of an oil-supplyextending into and only part way through the main supply-pipe andthereby forming an oil-and-steam-co-mmingling chamber in the outer endthereof, a sliding sleeve encircling the discharge end of the oil-supplypipe, a rod extending through the loil-supply pipe and secured to thesliding sleeve, and means for adjusting the rod and sliding sleevelongitudinally andl thereby varying the length ofthe oil-vaporizingchaml ber, substantially as set forth.

2. The combination with a burner-tube and means for admitting steamthereto, an oilsupply pipe, a T-coupling thereon, an oil-supply nozzleprojecting into the tube and a coupling connecting the T-coupling andnozzle, of an elongated tubular cap closing the inner end of the nozzleand slit in its closed '65 It will thus be seen that with my improveyIOO end, a screw-threaded rod extending through specification in thepresence of two subscribthe nozzle and couplings and through packingwitnesses.

ing-nuts in Jthe T-couplng and connected at its inner end to the cap anda seb-nut on the EDWARD WALTER PRITCHARD' 5 outer end of the rod toadjust, the cap longi- Witnesses:

tudinally. H. W. FAIRBANKS,

In testimony whereof I have signed this J. P. GRAUL.

